Question

F(2x-1)=7x+2
f invers (x)=?

Answer 1

F(2x - 1) = 7x + 2
misal:
y = 2x - 1 --> x = (y + 1)/2

f(y) = 7(y + 1)/2 + 2
      = (7y + 7 + 4)/2
      = (7y + 11)/2
f(x) = (7x + 11)/2
2y = 7x + 11
7x = 2y - 11
x = (2y - 11)/7
f⁻¹ (x) = (2x - 11)/7